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US 7,841,929 B2Granted
Recreation room and method for controlling the atmosphere in the room
AssigneeVolker Spiegel
InventorsVolker Spiegel, Ulrich Fuchs
Life of this patent
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Abstract
The invention concerns a method of adjusting a room air in a first room wherein the room air is supplemented continuously or at recurring intervals of time by nitrogen or a nitrogen-bearing, carbon dioxide-poor gas mixture in such a way that the proportion of oxygen in the room air is less than 20.9% by volume and the proportion of carbon dioxide of the room air is less than 1% by volume, wherein at the same time at least a slight overpressure in relation to an outside atmosphere surrounding the room is set in the room.
Claims13
A method of adjusting a room air in a first room comprising the steps of:
- adding to the room a nitrogen or a nitrogen-bearing, carbon dioxide-poor gas mixture until the proportion of oxygen in the room air is less than 20.9% by volume and the proportion of carbon dioxide of the room air is less than 1% by volume,
- producing the nitrogen-bearing gas mixture by separation of at least some of the room air withdrawn from the room in a separation installation in a circulatory mode and wherein ambient air or nitrogen or a nitrogen-bearing gas mixture is mixed with the room air in the separation;
- and
- during the step of adding, maintaining at least a slight overpressure in the room in relation to an outside atmosphere surrounding the room.
1 more element
Dependencies are inferred from the claim text.